select no consecutive values in charts

[#1]

Is it possible to select multiple values directly in a chart. For example energy and gas for the attached file.

[pover]

The best way to do this may be to enable the Dropdown Select option in the Presentation tab of the chart. The user can then click on the down arrow and with the Crtl key select non-consecutive value like a list.

Regards.

[#3]

So it´s not possible to get "ctrl+key" work directly in the chart?